机器人：等待连接时显示进度对话框 [英] android: displaying progress dialog when waiting for connection

问题描述

我想添加进度对话框，当一个新的活动推出，有等待来自网络的响应。此刻屏幕才行，而它正在等待黑色。是否有任何人知道它需要放在工作？

这progressDialog：

  ProgressDialog对话框= ProgressDialog.show（SearchActivity.this，，请耐心等待...，真正的）;
dialog.dismiss（）;
 

这是在overlayActivity延伸ItemizedOverlay：

  @覆盖
受保护的布尔中的onTap（INT指数）{
    最后OverlayItem项目=（OverlayItem）items.get（指数）;
    最后上下文mContext =环境;
    AlertDialog.Builder建设者=新AlertDialog.Builder（mContext）;
    builder.setTitle（item.getTitle（））
    .setCancelable（真）
    .setPositiveButton（查看详情，新DialogInterface.OnClickListener（）{
        公共无效的onClick（DialogInterface对话框，INT ID）{
            意向意图=新的意图（mContext，Profile.class）;
            intent.putExtra（ID，item.getSnippet（））;
            mContext.startActivity（意向）;
        }
    }）;
    AlertDialog警报= builder.create（）;
    alert.show（）;
    返回true;
}
 

这就是档案的活动：

 公共无效的onCreate（包savedInstanceState）{
    super.onCreate（savedInstanceState）;

    的setContentView（R.layout.profile）;
    捆绑额外= getIntent（）getExtras（）。
    字符串ID;

    如果（临时演员！= NULL）{
        ID = extras.getString（ID）;

        XML字符串= XMLfunctions.getXMLFromBarId（ID）; //使httpPost电话
        文档DOC = XMLfunctions.XMLfromString（XML）;
        节点列表节点= doc.getElementsByTagName（结果）;
        元素e =（元）nodes.item（0）;

        //配置文件的其余部分在这里创建
    }
}
 

解决方案

您应该使用进度对话框。应在配置文件活动中使用进度对话框。 您可以使用下面的code：

 最后ProgressDialog对话框= ProgressDialog.show（MyProfileActivity.this，，Loading..Wait ..，真正的）;
dialog.show（）;
处理程序处理程序=新的处理程序（）;
handler.postDelayed（新的Runnable（）{
    公共无效的run（）{
        //你的code在这里
                dialog.dismiss（）;
    }
}，3000）; // 3000毫秒
 

I am trying to add a progress dialog when a new activity is launched that has to wait for a response from the internet. At the moment the screen just goes black while it is waiting. Does any one know where it needs to be placed to work?

this progressDialog:

ProgressDialog dialog = ProgressDialog.show(SearchActivity.this, "", "Loading. Please wait...", true);
dialog.dismiss();

this is in the overlayActivity extends ItemizedOverlay:

@Override
protected boolean onTap(int index) {
    final OverlayItem item = (OverlayItem) items.get(index);
    final Context mContext = context;
    AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
    builder.setTitle(item.getTitle())
    .setCancelable(true)
    .setPositiveButton("View Details", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            Intent intent = new Intent(mContext, Profile.class);
            intent.putExtra("id", item.getSnippet());
            mContext.startActivity(intent);
        }
    });
    AlertDialog alert = builder.create();
    alert.show();
    return true;
}

and this is the Profile activity:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.profile);
    Bundle extras = getIntent().getExtras(); 
    String id;

    if (extras != null) {
        id = extras.getString("id");

        String xml = XMLfunctions.getXMLFromBarId(id); // makes httpPost call
        Document doc = XMLfunctions.XMLfromString(xml);
        NodeList nodes = doc.getElementsByTagName("result");
        Element e = (Element)nodes.item(0);

        // rest of profile created here 
    }
}

解决方案

You should use Progress dialog. Progress dialog should be used in the Profile activity. You can use the following code:

    final ProgressDialog dialog = ProgressDialog.show(MyProfileActivity.this, "","Loading..Wait.." , true);
dialog.show();
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    public void run() {
        //your code here
                dialog.dismiss();
    }   
}, 3000);  // 3000 milliseconds

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